玉米白斑病的症状识别与诊断  

Symptom recognition and diagnosis of maize white spot

作　　者：何鹏搏 何鹏飞[1] 吴毅歆[1] 陈倩[2] 赵正龙[1] 亢波 MUNIR Shahzai 唐萍 谭万忠 何月秋[1] 王云月[1] HE Pengbo;HE Pengfei;WU Yixin;CHEN Qian;ZHAO Zhenglong;KANG Bo;MUNIR Shahzai;TANG Ping;TAN Wanzhong;HE Yueqiu;WANG Yunyue(Yunnan Agricultural University,Kunming 650201,China;State Key Laboratory of Mycology,Institute of Microbiology,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]云南农业大学,昆明650201 [2]中国科学院微生物研究所,真菌学国家重点实验室,北京100101

出　　处：《植物保护》2024年第1期268-271,共4页Plant Protection

基　　金：国家重点研发计划(2023YFD1400100);云南省重大科技专项计划(202102AE090023)。

摘　　要：由宽颈附球孢菌Epicoccum latusicollum Qian Chen, Crous&L. Cai引起的玉米白斑病正在我国局部地区流行,导致重大损失,并有扩大流行范围的趋势。为了增加植保及玉米抗病育种工作者对玉米白斑病的了解,本文描述了该病害的症状特点、病原菌特征,总结了发生规律、病害循环及分离鉴定和诊断技术。玉米白斑病菌能在病残体上越冬,种子带菌是其远距离传播的主要途径,风夹雨、昆虫及农事操作人员活动是近距离传播途径。7月中下旬至9月中下旬是白斑病流行高峰期,病菌与玉米适宜生长温度基本一致,具有扩散传播的风险。Maize white spot(MWS),caused by Epicoccum latusicollum Qian Chen,Crous&L.Cai,is endemic in local areas of China,resulting in significant losses and exhibiting a tendency to expand endemic area.In order to deepen understanding of MWS among plant protection workers,maize resistance breeders and related parties,the characteristics of symptoms and the MWS pathogen were described,and the occurrence regularity,disease cycle,isolation and identification of the pathogen and diagnosis techniques were summarized in this paper.E.latusicollum can overwinter on the diseased bodies,and the carriage by maize seeds is the main way of its long-distance transmission,wind and rain splash,insects and farm operators are the way of close-distance transmission.The MWS epidemic peak occurred from mid-late July to mid-late September,and the optimum growth temperature of the pathogen was basically the same as that of maize,implying that the disease has the risk of spreading nationwide.

关 键 词：玉米白斑病 宽颈附球孢菌 病害症状 发生规律 诊断 

分 类 号：S435.131.49[农业科学—农业昆虫与害虫防治]